Wrench



L. RENFTLE.

WRENCH.

, APPLlCATiON FILED APR. 26, 1919. 1,335,028. Patenfied Mar. 30, 1920,

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zu ms Fw /d ill LUCAS RENFTLE, OF WARREN, OHIO.

WRENCH.

Application filed April 26, 1919.

To all whom it may concern Be it known that I, Lucas Rename, a citizenof the United States, and resident of l l arren, in the county ofTrumbull and State of Ohio, have invented certain new and usefulImprovements in Wrenches, of which the following is a specification.

The present invention relates to wrenches, and aims to provide a noveland improved implement of that character provided w1th novel swingingjaws so arranged as to separate to receive objects of different sizestherebetween, and connected to the handle or lever in such a way thatwhen the handle or lever is swung to turn the nut or other objectbetween the jaws, the jaws will be caused to tightly grip the object toprevent slipping.

A. further object is the provision of a wrench embodying outer and innerjaws both pivoted to the shank or lever, with the arrangement of saidlever and jaws being such that the jaws will be disposed parallel.

in their diiferent positions and will be caused to tightly grip or clampthe object therebetween when the lever is swung in the correspondingdirection.

It is also the object of the invention to provide such a wrench which issimple and inexpensive in construction, as well. as being practical,serviceable and efficient in use.

With the foregoing and other objects in view, which will be apparent asthe description proceeds, the invention resides in the construction andarrangement of parts hereinafter described and claimed, it beingunderstood that changes can be made within the scope of what is claimedwithout departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure1 is a side elevation of the wrench with the jaws in their closestrelation.

Fig. 2 is a similar View showing the jaws separated for gripping alarger object.

The wrench embodies a straight shank or lever 1 of suitable length, anda rocking or swinging jaw 2 at one end of said lever 1, said jawextending transversely across the end of the lever, and having aninwardly extending ear 3 between its ends overlap pin g the lever andpivoted thereto, as at 4, so that said jaw can be tilted or swung todifferent angular positions.

The outer jaw 5 is also mounted for swing- Specification of Letters Patent.

?atented Mar. 30, 1. 920.

Serial No. ZEZBOQ ing or tilting movement, and is longer than the innerjaw 2 and disposed parallel therewith outside of said inner jaw. Thisouter jaw 5 is carried by an arm 6, said jaw 5 extending atsubstantially right angles from the outer end of said arm which isdisposed at one side of the lever 1. The inner end of the arm 6 extendsat an angle toward the lever 1, as at 7, and is pivoted to said lever inthe longitudinal center line thereof, as at 8, between the ends thereofa considerable distance from the pivot in closed post tion the jaws bothextend transversely across the longitudinal center line of the lever toopposite sides.

Thus, when the arm 6 is swung a ay from the lever 1, the jaw 5 will moveaway from the jaw 2, thereby separating the jaws, so thatthey can beapplied to objects of different sizes, and at the same time, the aw 2can be swung or tilted so as to remain parallel with the jaw 5, as seenin Fig. Furthermore, due to the arrangement, when the end or handle ofthe lever 1 opposite the jaws is swung (downwardly as illustrated) thiswill pull the arm 6 and jaw 5 with the lever, and the joint or pivot 1-between the lever and jaw 2 will tend to swing or move upwardly, so asto have a tendency to turn the jaw 2 to ard the position shown in Fig.1, thereby causing the object to be tightly gripped. In other words,when the jaws are swung to ward one side, as seen in Fig. 2, and thehandle of the lever 1 is swung, this will tend to swing the parts towardthe position shown in Fig. 1, in order that the jaws will be movedtoward one another with considerable pressure, so as to prevent slippingof the object therebetween.

i The faces of the jaws and a portion of the arm 6 can be toothed asshown, especially when the wrench is used as a pipe wrench. Said jawsare elongated and their faces straight so as to be disposed parallel invarious angular positions and to overlap to grip the object betweenthem.

In order to maintain the jaws parallel, when this is desired, a link orrod 9 can be provided between the arm 6 and jaw 2, with its endspivoted, as at 10, to said jaw 2 at one end and to the arm 6 near thepivot 8. This rod or link will cause the jaw 2 and arm 6 to swing withthe faces of the jaws always parallel. The pivots 10 are removable, inorder that the link 9 can. be detached when. not wanted, as a bettergripping action can be obtained without this link, such as when usingthe device as a pipe wrench.

The wrench can be conveniently applied to the object, without thenecessity of adjusting any of the parts, other than to swing the jawsapart, which can be done very easily and quickly, and there are nosliding parts or adjustments as in the ordinary wrench, which requiremore or less time and work in making adjustments. In fact, the presentwrench can be applied almost instantly to objects of different sizes,simply by swinging the jaws apart and then swinging the lever after theobject is between the jaws, which will cause the jaws to tightly gripthe object without liability of the parts slipping.

Having thus described the invention, what is claimed as new is 1. Awrench comprising a straight lever having a handle at one end, an innerjaw pivoted to the other end of the lever to swing around said end andextending across the longitudinal center lineof the lever to oppositesides, an arm extending along one side of said lever and having aportion at one end extending at an angle and pivoted to the leversubstantially in said center line thereof a considerable distance fromthe inner jaw between the ends of the lever, the other end of said armhaving an outer aw extending at an angle therefrom beyond the inner jaw,and a longitudinal link connecting said portion and inner jaw at oneside of the lever.

2. A wrench comprising a straight lever having a handle at one end, aninner jaw pivoted between its ends to the other end 01'' said lever toswing around said end and extending transversely across the longitudinalcenter line of said lever to opposite sides, an arm extending along oneside of said lever and having one end pivoted to said leversubstantially in said center line a considerable distance from the innerjaw between the ends of the lever, the other end of said arm having anouter jaw extending at an angle therefrom beyond the inner jaw, saidinner and outer jaws having elongated straight faces to be disposedparallel in overlapping relation in various angular positions, and alongitudinal link for opera.- tively connecting said inner jaw and armat one side of the handle to maintain the faces of the jaws parallel.

In testimony whereof I hereunto set my hand.

LUCAS RENFTLE.

